Typical discomycetes . Fruit bodies ( apothecia ) 3–8 mm in diameter, cup-shaped, disc-shaped or scapular, often asymmetric. The inner spore-bearing surface ( hymenophore ) is blue-green, sometimes with a yellowish tinge, darkening with age, smooth. The outer sterile surface is also blue-green, darker, hairless or velvety-hairy. The fungal mycelium stains the wood in a blue-green color, which makes the fungus noticeable and not during the formation of apothecia. The false leg is usually eccentric, pronounced, up to 6 mm long and up to 1.5 mm thick, tapering downward [1] .
The pulp is thin, blue-green, odorless [1] .
The spores are whitish in mass, 5–8 (10) × 1–2 (2.5) microns, fusiform or elliptical in shape, with two drop-guttulas at the ends, with smooth walls. Aspen spores, 45-50 × 3-4 microns, club-shaped. Paraphyses about 1.5 microns thick, filiform, with slightly thickened ends, often branched at the base, septate , exceeding the length of the askey. An external excipule with spiral-shaped curved or straight thin-walled hyphae 1–1.5 (2) microns thick, raised above the surface (and making it velvety) [1] .
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Characteristic whitish regular fruiting bodies of chlorocymborium blue-green
- Chlorociboria aeruginosa ( Oeder ) Seaver ex CSRamamurthi, Korf & LRBatra, 1958 - Chlorociboria blue-green - a rarer species in most regions. It differs almost always in regular apothecia of smaller sizes on the central, often reduced stalk, despite the name, with a paler, at least with age, whitish spore-forming surface, and yellowish flesh. The spores are larger - 8-15 × 2-4 microns [1] .
Chlorocymboria - saprotrophs (xylotrophs), growing on the bare decaying deciduous wood of deciduous trees, is most often observed on oak .
A widespread mushroom found in many regions of Russia. Outside Russia it is found in Central, Northern and Eastern Europe ( Bulgaria , Great Britain , Denmark , the Netherlands , Slovakia , Ukraine , Finland , Czech Republic , Sweden ), in Asia ( Armenia , Georgia , as well as India , China , Japan , the Philippines ), in Northern America ( Canada , USA , Greenland , Cuba ), in the north of South America ( Venezuela ) [1] .
